The wiki says it's an instance, however, I don't know what kind of instance. So if someone can expand on this, I would like to know.
The Receipient is the player who chatted the chat. For example, this would kill anybody who chats..
game.Players.PlayerAdded:connect(function(v) v.Chatted:connect(function(msg, player) --Msg is the actual chat, player is the player who chatted it. player.Character.Humanoid.Health = 0 --Kills the player. end) end)
game.Players.PlayerAdded:connect(function(plr) plr.Chatted:connect(function(msg) if msg == "Shutdown" then game.Players:ClearAllChildren() end end)